We tried a 90 second Tethered hover today. It did not go well. The vehicle would intially lift off then thrust would decay and it did not have enough lift. This may be a catalyst issue. At the same time we had dynamic stability issues at the heavy weight. We tried 5 times and on the 6th flight we solved the stability issue and murphy struck. The vehicle lifted off flew stably and climbed too high. When we hit the abort it got tangled in the tether and with close to 600lbs of weight it crushed all four actuators on the control vanes then fliped over tearing off the emergency event, showirng everything on the rocket with peroxide. The peroxide melted or damaged almost all of the wireing on the vehicle. All in all its probably a â€œ60 hours of work event.â€